Typewriting machine



Feb. 16 ,1926, 1,573,401

J. LINDBURG TYPEWRITING MACHINE Fild Jzmf 31, 1924 l/rve/rfor PatentedFeb. 16, 3.926.

inn'ren STATES PATENT OFFICE.

JOSEPH. LINDBURG, BROOKLYN, NEW YGRK, ASSIGNOR IO UNDERW'OOD TYPE-WRITER, COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAVIARE.

TYPEWRITING IrIACHINE.

Application filed January 31, 1924. Serial No. 689,633.

To (4Z5 whom it may concern lie itxltnown that I, Josnrn: LINDBURG, acitizen of the United States, residing in Bay Ridge, Brooklyn, in thecounty of Kings, city and State of New York, have invented certain newand useful Improvements in Typewriting. Machines, of which the followingis a specification.

Thepresent invention relates to a device for correctly determining thepositions of types to be set into a typewriting machine, and for holdingthem in place while they are soldered to the type-bars.

A comparatively simple device for this purpose is herein disclosed whichcan expeditiously and conveniently be inserted into or removed from thetypewriting ma chine, and when inserted locks the platenframe in. afixed case-position. This device comprises a'relatively stiff strip ofspring.- metal shaped to rigidly loclr the main frame to theplaten-frame of the machine. In this connection, a feature of theinvention is to provide a case-sl1iftlocking device of great utility byhaving means to increase the resiliency and better accommodate any va- 7riation found in the relative position between the main frame and thecase-shift frame on different machines.

-When a type-bar is swung to the anvil mount on the platen-shaft, it isheld there against the action of the usual return spring until thesolder has hardened, so as to avoid the risk of displacement of theblock on the type-bar.

Another feature of this invention is to provide a simple improved meansfor hold- 7 ing the type-bars in position during the soldering operationin such a manner as to preclude all possibility of disturbance of thetype on the bar after the type is adjusted, and for grasping thetype-bar-holding means so that it can be more quickly and more easilyinserted into and removed from the machi is.

An object of the present invention is the provision of an improvedadjustable mounting which will hold the type againstdisplacement in itsascertained correct position while the same is being soldered to thetypebar, and the provision of means whereby this type-rest or anvil maybe readily adjusted to such position that any type soldered to its barwhile so in place on the anvil must print in true alignment with theother type. This mounting may be aflixed by a workman temporarily to thetypewriting machine, and be adjusted and locked in correct position.Flexibility of adjustment angularly up and down, and backward andforward of the anvil are provided for in a plane at right angles to theplaten-shaft. When any type selected for the purpose of setting theanvil is thrown by its bar against the anvil, the latter may be broughtto position with its face or platform thereof flat against the face ofthe type, and with an aligning ledge on the anvil in engagement with thebase of the type so selected.

Spring means to take up play between the screw and the anvil is alsoprovided, and the threaded support for the adjusting screw may beslotted and provided with a tightening means to form a clamp which takesup the wear of the thread in the support for the screw, so that thescrew does not turn too freely. The clamp-tightening means may also beused for locking the adjusting screw in a set position.

Another feature of the invention relates to the wedglng device forclamping the main bracket and the anvil-supporting bracket oranviluids-support, so that the anvil is held after being adjustedangularly, bachwardly or forwardly. The brackets ray he fastcnedtogetheror released, by simply tightening a thumb-screw. The improvementcomprises fitting the leading end of the bolt that passes through themain bracket and the lugs on the anvil-guidesupport with a \vcdgingelement having two prongs which have inclined edges and which straddlethe bolt and engage the ends of a pin that passes through the end of thebolt to draw on the bolt by means of a thumbscrew threaded into thewedging element, consequently producing the desired clamping effect torigidly hold the anvil in a ljusted position. The bolt may be keyed tothe main bracket to prevent its turning, so that the wedging clementattached thereto is always in a convenient position for readilymanipulating the thumb-serew.

Another feature of the invention provides an improvec. form of lugs onthe anvilguide-snpport to give maximumadjustable movement with relationto the length thereof by bifurcating the same and to permiteasy assemblyand dismounting of the anvil-guide-support, at the same time providingsimple means to prevent the anv1lguide-support from being accidentallyremoved from the main bracket. This latter comprises a screw threadedinto the end of one of the lugs, the head of which is arranged tooverlap the cut-out portion in, the bifurcated lug and thereby form withthe bolt extending through the bracket a stop to prevent the accidentalremoval.

1 A temporary or test platen may be provided, preferably mounted at oneend of the same shaft that supports the type-blocksupporting device, sothat the type that havebeen set in position may be tried out ,with othertype as a check on the work before the device 15 dismounted from thetypewriting machine.

Other features and advantages will hereinafter appear.

In the accompanying drawings, 7 g Figure 1 is a view, in side elevation,partly in section, of a portion of an Underwood portable typewriterhaving the invention installed therein ready for the operation ofsetting and soldering a typeblock.

Figure 2 is a sectional view, in side elevation, taken on the line 2 2of Figure 4:.

Figure 3 is a front elevation of the device, partly in section.

Figure 1 isa top view, partly in section, of the type-block-settingdevice shown in Figure 1. 2

Figure 5 is a perspective view of an improved form of device for holdingthe typebars in position while soldering.

Figure 6 is a perspective view of a takeup spring shown in Figure 2.

' Referring to the drawings in which the invention is shown applied toan Underwood portable typewriting machine, the main portion of thetype'bar-setting device, designated as 10, see Figure 1, may be ofproper proportion and design to enable a'workman to temporarilysubstitute it for the usual platen. The device 10 may comarise a sleeveor hollow shaft 11 on one end of which may be suitably mounted acylindrical test-platen 12, which preferably occupies less than halfthelength of the shaft 11. The outerend of the test-platen 12 may beprovided with a ratchet-wheel 13 suitably positioned to be engaged bythe usual detent platen-roll (not shown) on the machine for holding thetest-platen 12 against rotary displacement. Each end of the hollow shaft11 may have fitted therein a bushing 14:, (only the one on the rightbeing shown) of proper size to fit a usual platen-shaft 15.

A et-screw 16 may preferably be provided at the right-hand end of theshaft 11 pass- "ig theret-hrough and through the bushing '14 to engagethe platen-shaft 15, so that the shaft 11 will turn therewith in theusual manner. I V

A type-positioning tool 17 is shown mounted at the right of thetest-platen 12 on shaft 11, preferably near the center of its length.The positioning-tool 17 may comprise a main bracket 18 having a collarportion 19 fixed on the shaft 11, which provides for angular adjustmentof the same and which is fixed on shaft 11in a suitable manner, as byone or more set-screws 20. Upwardly from the collar-portion 19, ayoke-portion 21 extends which may be slotted to receive. one or more,preferably two, re: r 'ardly-extending bifurcated lugs 22 provided on ananvil-supporting bracket or anvil-guide -suppo.rt 23 .for adjustablymounting the latter to the main bracket 18. A pin provided with a head31 may pass through the middle of the yoke 21, and norn'zally passthrough the cut-out portion of he bifurcated lugs 22. The bifurcated lugform of connection offers an improved means for taking apart orassembling the positioning-tool '17. The lugs 22 are slidinglylittedinto the slotted yoke 21, and by a novel clamping means, aswedging means 25, the lugs 22 of the anvil-guide-support 23 may berigidly held in any adjusted position.

A wedging element 26. mounted on. the leading end of the headed-pin 24:forms therewith the improved clamping means 25. The leading end of theheaded-pin 24 may be flattened, and have a pin 27 passing through theflattened sides. The ends of pin 2'? may be engaged by the inclinededges of two prongs 28 of the wedging element 26 which may straddle theleading ends of the pin 2 1. A thumb-screw 29 threaded through the upperportion of the wedging element 26 may bear on the pin 24: to draw thesame into elfective position, whereby the sides of the slotted yoke 21,which are slightly flexible, are pressed toge her between the head ofthe pin 2 and the wedging eiement 26, to rigidly clamp the lugs 22 ofthe anvilguidesupport 23 in position. A washer 30 may be interposedbetwen the wedging element 26 and the side of the yokev 21.

The wedging element may also be provided with a suitable means to holdthe thumb-screw 29 in position, so that it can alwa s be convenientlymanipulated. This may be accomplished by driving the pin 2% through theleft-hand ear of the yoke 21 with clearance holes through the. otherears for the pin to keep the wedging element 26 in a 1. 1 mm Hieiatlveiy naed position. lhe backward and forward, as well as the upand down, adjustment of the positioning-tool 17 may in part be effectedby rotating collar-portion 19 of the mainbracket 18 on the shaft 11, andfurther backward and forward adjustment of the anvil-supporting bracket23 can be made by moving the bifurcated lugs 22 of the anvil-supportingbracket 23 through the pin 24: in the desired direction after looseningthe wedging element 26.

Novel means may be provided to prevent accidental removal of theanvil-guide-support .13 from its mounting, preferably by threading ascrew 32 into any one of the legs of the bifurcated lugs shown inFigures 2 and 4, as threaded into the righthand upper one. In design therelation of the cross-section of the leg of lug 22 in which the screw 32is threaded should be such that the screw 5;. overhangs the cut-outportion of the bifurcated log 22 and should not interfere with the sidesof the slot in yoke 21. In so proportioning the parts, the maximum forwand backward adjustment of the anvil-supporting bracket 23 is allowed totake PlfiCQ,'1I1Cl the head of screw 32 will engage the body of the pin2% to prevent the anvil-guide-support 23 from being accidentally removedfrom its mounting. By removingscrew 32 the anvil-guide-support 23 mayeasily be assembled or dismounted from the main bracket 18.

Each usual ype-bar 34 is soldered at its free end into the back of atype-block 33, and to remove the same it is only necessary to break thesolder. Before affixing a new type 33 to the bar 34, it is necessary toproperly position the same both lengthwise and singularly of the bar andtherefore the new type 33 must be rigidly held by the type block-settingdevice in the correctly determined position for the soldering operation.

Before beginninpthe type-bar-setting operation, it is preferable that acasedocking device 35 be inserted between the typewriter frame 36 andthe caseshifting carriage 37 to prevent the shifting movementpreliminary to and during the operation of setting and soldering thetype, after which the usual platen may be replaced by thetype-blocksetting device 16. is shown in Figures 1 and 3, thecase-locking device 35 consists of a relatively still spring folded onitself and shaped to be held in place againstaccidental displacement,and to lock the case-shifting frame 37 from movement relatively to themachine frame 86. The locking device 35 is also designed to be easilyinserted into and removed from the machine.

To improve the utility of the case-locking device 85, an extra fold orloop may be provided over the portion 61 which normally holds thecase-shifting frame for more effectively accommodating variations ofrelative heights between the machine frame 36 and the case-shiftingframe 37 in different machines, and the handle 62 may be enlarged toincrease the resiliency of the device.

The typesetting tool 17 of the device 10 may next be positioned on shaft11 at the printing point by loosening the set-screw 20,

sliding the collar portion l9 of the main bracket 13 along, and lockingthe same in any desired angular position thereon by retightening thescrew 2t or the carriage of the machine may be moved to bring the tool17 to the printing position by the usual letter-space in chanisu, notsl'iown.

'lhe anvil 'dp 33 through its rearaardly-ex lugs 32 adjustably securedto the yoke main bracket 18 by the pin A and the wedging element 26, asexplained above. The anvil-gnide-sup port 2 may n'cfcrably be composedof a single block of metal and formed on its front side with means forslidingly engaging with an anvil 38 for np-and-down n'iov-ement, seeFrom it. An car 3:) may be offset rearwardly from the m ddle of theupper side of the anvil 38 and may be bi'lt'urcated to receive the lowerportion of a grooved adjusting thumb screw till. 15y turning thethumbscrew it), the anvil may be adjusted up and down on the front sideof the anvilsupporting bracket Since any appreciable play in theconnection between the thumb-screw l0 and the car 39 of the anvil 38 isliable to allow movement which will interfere with obtaining exactsettings of the t e-bloek 33 take-up means 65 may be provided toeliminate this 1 irable ell'ect. Take-up means 65 may unt ne'lerably bein the form of a strip of flat spring bent over the top and down thesides of the car 39 of anvil 38 and normally having the ends (36 thereofextend rcarwardlv into the grooved portions of the thnml screw e'lObetween the under side of the car 39 and the upper side of a shoulder ofthe groove on the thumb-screw 4:0, as shown in Figure 2.

Jo support the thumb-screw 40, the anvilile-snpport 2?) may have aprojecting pi c &1 rearwardly extending f cm the top e thereof over theor 235) of the anvil 38. which may have a downwardly threaded hole 42 toreceive the screw l0. in order that the screw lO may not move too freelyin the threaded hole. when worn. a slit at at?) may be made in theproiccting piece 41 i'rrm the rear end thereof into the threaded holeand a screw 4d extending transverse 1y of the slit may be provided toadjustably draw the split portions of the piece ll together, therebycontrolling the opening of the threaded hole The screw l lmay be used asa clam control, as described ab ve, or as a n no for locking thethumbscrew d0 against movement by tigl'itening the same when the row l0has been set in an adjusted position.

In operation, the position an d adjustments of the anvil are lirstdetermined by aligning same with a type-block 33 and type-bar 34-. otherthan the one which is to be set or SOlLlQlQt'. and which is known to becorrectly iositioned fortyping. After the bracket 18 and the anvil 38,above described, have been set at. the printing point any type bar 3carrying a properly positionedtype-block 233 may be swung to the anvil38 by depressing'on its type-key (not shown). The latter has a tlatplatforin portion to for aligning the face of the type-block t iereonand an aligning ledge 46 at its lower edge to hold the base thereof. Bymeans of the thumbscrew29, the wedging element 26 may be loosened whichrelease the headed pin 24 to unclamp the lugs 22 from the yoke 21, andthe anvil-sup wrting bracket 23 may be moved anguiarly, forwardly orbaclrwarc y as need beto make the face of the typeblock 33 rest flatagainst the platform 15. "Xe-ti htening of the wedging element 26 byurning the thumb-screw 29 in place is adjustment. The thumb-screw 4-0 isb en turned to' move the anvil 38 until the ledge 6 thereof is incngagcnicnt'with the base 0" the type-block 33. Thunib-screw t0 may blocked, if desired, by tightening the screw The correct position of theanvil 88 will thus be determined. The type-block 83 used to ascertainsuch a iosition is released, and another type-bar J t on which atype-block 33 is to be soldered is then thrown up tothe anvil 38. A newtype-block 32-5 is set with its face flat against the platform the anvil38 and with its base aligned on the ledge' ltl. The ype-bar St is thensoldered or otherwise aliizred in a wellnown manner to the back of thetype-bl 83.

Before afl'iiiing each type-block 00, means asily inserted into andremoved from the machine'niay be provided for holding the type-bar 3tforwardly against the usual mechanism (not shown), which normallyreturns thesarne to its rest position. This may preferably be in theform of a type-bar-holding device 4'7, such as is shown in operativeposition in Fi ure l. The holding device 4L7 may consist of a flatspring punched and bent to have three extending port ons l8, and 50. Theportions and may serve to hold the device in place, and L9,

.which has a finger or pressure edge 5%,

serves to, hold the type-bar The portions and 50 are offset from oneanother, so tl at when the device 47 is compressed spaced ends 51 ofportion 4-8 may be set to be substantially supportedby a stationary partof the frame of the machine as under and against a of the typewritingmachine. The portion 50 may be set'unoer and against the usual tyz-e-bar segment If the type-bar 3 1 has beenswung forwardly previous toinserting of the device 4?, then, when the latter is positioned as justdescribed, the finger 5% effect laterally from the end of the portion 49will bear with spring-pressure on the rear edge of the type-barEithoiding the bead 52 on the front frame' samelirinly in position withthe type-block 33 flat against the anvil platform 45.

Two round holes 55 may be punched in portions and &9 to offer convenientmeans for grasping the device t? between the lingers to compress samewhen it is desired to insert it in or remove it from the machine. Thetype-blocks 33, when set, may be tested for alignment by moving thetest-platen 12 to the printing point and typing in the usual Aftersetting the type-blocks 33 and testing the same, the device 10 may bereplaced by the usual platen with assurance that the types are in corect aligned position for printing.

Variations may be resorted to Within the scope of the invent-ion, andportions of the improven'ients may be used without others.

-aving thus described my inventiom'l claim:

Tl. A device for positioning type-blocks on pivoted type-bars of arevoluble-platen' typev riting machine, comprising a main bracket,pporting 111621119011 which said bracket is adjustable in a planeatright angles to the platen an anvilguide-support adjustable angularly,forwardly, or rearwardly on said inein bracket. in plane at right anglesto the platen axis, an anvil mounted for up-and-down adjustment thereon,and means on the anvil-guidesupport to guard against accidental removalfrom said main bracket and to facilitate assembling and dis mountingthereof, said device being positionable at the printing point andadjustable to cause the face of a type-block to lie flat on the anviland in c rrcct printing ali "y the type-block against the anvil.

2. device for positioning type-blocks on pivoted type-bars of arevolubleplsten typewriting machine, comprisinga main racket, supportingmeans on which said bracket is adjustable in plane right angles to theplaten axis, an anvil-guidceupport adjustable anoularly, for? orrearwardly on said main bracket in a plane at right angles to the platenaxis, an anvil mounted for up a d-down adjustment thereon, and Wedging.ns to clamp the anvil-guide-support to said main brat t in any adjustedposition,

said device b -g positionable at the printing point and ad ustable tocause the face ofa type-block to lie flat on the anvil and in correctprinting lignment upon operation fiype bar to carry the type-blockagainst anvil. o. A device for positioning type-blocks on pivotedtype-bars of a revoluble-platen typewriting machine, comprising a mainbracket, supportinglneans on which said bracket is adjustable in a planeat right angles to the platen axis, an anvil-guide-support adjustable,angularly, forwardly, or rearwardly on said main bracket in a planepnment upon operation of a type-bar to at right anglee'to the platenaxis, an anvil mounted for upand-do\vn adjustment there on, Wedgingmeans to clamp the anvil-guidesupport to said niain bracket in anyadjusted position, and means to hold the Wedging means in a convenientposition for ready manipulation, said device being positionable at theprinting point and adjustable to cause the face of a type-block to liehat on the anvil and in correct printing alignment upon operation of a t"bar to carry the typeblock against the anvil.

4-. A device for positionin type-blocks on pivoted type-bars of arevolubleplaten typewriting machine, comprising a main bracket,supporting means on which said b'acket is adjustable in a plane at rightangles to the platen axis, an anvilguide-support adjustable angularly,forwardly, or rearivardly on said main bracket in a plane at rightangles to the platen axis, an anvil mounted thereon, adjustableconnecting means to give up-and-down movement to the anvil, and take-upmeans to eliminate possible relative movement between said connectingmeans and the anvil, said dereaiavardly on said main bracket in a plane.atright angles to the platen axis, an anvil inounted thereon, adustable connecting means to give up-anddown movement to the anvil, andmeans to control the ease olf novement of said connecting means and tolock, ii? desired, the connecting means in any ad- Z'nsted position,said device bein iositionable atthe printing point and adjustable tocause the. ace of a pe-liilock to lie flat on the anvil and in correctprinting alignment upon operation of a type-bar to carry the type-blockagainst the anvil.

- 6. For a typew ing machine having pivoted type-bars, a tv e-solderingfixture insortable into the machine, having thereon a plurality ofspaced nieans "forming a substantial support to engage the frame of themachine, with means thereon to engage and hold against movement atype-bar vrhich may have been swung to printing position, and an anvilfor aligningthe type to the printing position.

' 7. F or a typewriting machine having pivoted type-bars, atypesoldering fixture insertable into the machine, having thereon aplurality of spaced means forming a substantial support to engage the3"" nine of the machine, means thereon to engage and hold againstmovement a type-bar which may have been *ung to printing position, withgripping means thereon to facilitate grasping the fixture for insertingthe same into or removing it from the machine, and an anvil for aligningthe type to the printing posi tion.

8. For a typeivriting machine, a type soldering liiiturc inscrtabio intothe machine, having means thereon for locking the typecarrying means andthe platen against relative displacement with respect to each other,with means thereon capable of c coinniodating variations of positions indilierent machines of the portions thereof to be locked by the fixtureand to render the fixture more resilient, an anvil for aligning the typeto a printing position, and means 'lor locking the type against theanvil.

9. In a typeu'riting machine having a revoluble platen, type-carryingmeans comprising pivoted t 'pebars for carrying typebloeks to strikeagainst the platen, a device to temporarily replace the platen forpositioning the type-blocks to be attired to the type-bars, comprising amain bracket having a pair of slots therein, supporting means on whichsaid bracket is adjustable in a plane at right angles to the platenaxis, an anvil-guide-support having a pair of bifurcated lugs extendinginto the slots in said bracket, a headed pin extending through the b'ackct and loosely through cutout portions of the bi'l'ur-ated lugs toprovide a connection between said bracket and anvilguide-support forbackward and forward movement, and angular adjustment of theanvil-guidc-su iport on the bracket, displace-able means overhanging thecutout portions of the lugs to form with the body of the pin passingthrough said slots a stop to prevent accidental ](-3ll1()"i1l of theanvilguide-support and to facilitate assembling and dislnountingthereof, \vcdging means for clamping the tlDVll-fIUl(lC+$lll)jl0i'lL inadjusted position, and an anvil adjustabl supported on the anvil-guidesupport for holding a type-block in correct printing alignment.

10. In a l'ypcu'ritiug machine having a rcvoluble platen, type-carryingmeans comprising pivoted type-bars for carrying typeblocks to strikeagainst the platen, a dc ice to temporarily replace the platen forpositioning the type-blocks to be all'ixed to the type-bars, comprisinga main bracket having a pair of slots therein, supporting means on whichsaid bracket is adjustable in a plane at right angles to the platenaxis, an anvibguide-support having a pair of bifurca ed lugs extendinginto the slots in said bracket, a headed pin extending through thebracket and loosely through cutout portions ill) . means overhanging thecutout portions of the lugs to form with the body of the pin passingthrough. said slots a stop to prevent accidental removal of theanvil-guide-support and to facilitate assembling and dismountingthereof, wedging means comprising awedging elementfastened to theleading end of the headed pin, tightening means to err ect the wedgingfor clamping between the wedging element and the head of said pin thelugs in said slots of the bracket, and an anvil ad ustably supported onthe. anvilgulde-support for holding a type-block in correct printingalignment.

11. In a typewriting machine having a revoluble platen, type-carryingmeans comprising pivoted type-bars for carrying typeblocks to strikeagainst the platen, a device to temporarily replace the platen forpositioning the type-blocks to be afiixed to the type-bars, comprising.a main bracket having a pair of slots therein, supporting means on whichsaid bracket is adjustable in a plane at right angles to the platenaxis, an anvil-guide-support having a pair of bifurcated lugs extendinginto the slots in said bracket, a headed pin extending through thebracket and loosely through cutout portions of the bifurcatedlugs toprovide a connection between said bracket and anvilguide-support forbackward and forward movement, and angular adjustment. of theanvil-guide-support on the bracket, displaceable means overhanging thecutout por- 'tions of the lugs to form with the body of the pin passingthrough said slots a stop to prevent accidental removal of theanvilguide-support and to facilitate assembling and disinountingthereof, wedging means comprising a. wedging element fastened to theleading end of the headed pin, tightening means to effect the wedgingfor clamping between the wedging element and the head of said pin thelugs in said slots of the bracket, means to fasten the headed pinagainst relative movement with respect to the bracket for holding thewedging means in convenient position for ready manipulation, and ananvil ad ustably supported on the anvil-guide-support for holding atype-block in correct printing alignment.

12. In a typewriting machine, type-carry ing means comprising pivotedtype-bars for carrying type-blocks to strike against the platencf themachine, a device to temporarily replace the platen for positioningtype-blocks to be afixedto the type-bars in correct alignment,comprising 7 a main bracket, supporting means on which said bracket isadjustable in a plane at right angles to the platen axis, asanvil-guide-support adjustable angularly, forwardly, or rearward'ly insaid main bracket in a plane at right angles to the platen axis, ananvil mounted thereon, adjustable connecting means to give up-and-downmovement to prising pivoted type bars for carrying type blocks to strikeagainst the platen, a device to temporarily replace the platen forpositioning the type-blocks to be affixed to the type-bars, comprising amain bracket, supporting means on which said bracket is adjustable in aplane at right angles to the platen axis, an anvil-guide-supportadjustable angularly, forwardly, or rearwardly in said main bracket atright angles to the platen axis, an anvil mounted thereon, andadjustable connecting means to give upand-down movement to the anvil,having a resilient take-up at the connection to the anvil to eliminatepossible relativemovement therebetween.

14. For a typewriting machine having pivoted type-bars with detachabletype-bear ing blocks to be soldered thereto, a platenshaft, ayoke-support on the platen-shaft, a type-aligning device adjustablysupported by the yoke to predetermine the relative position of thetypo-block to the type-bar, and cam-actuated means to lock the aligningdevice in an adjusted positionto the yoke-support during the operationof soldering a type-blockto the type-bar.

1 5. For a typewriting machine having pivoted type-bars with'detachabletype-bearing blocks to be soldered thereto, a'platen-i a type-aligningdevice adjustab'ly supported by the yoke to predetermine the relativeposition of the type-block to the type-bar, and means to clamp thealigning device to the yoke-support in any adjusted position, includinga clamping pin, a pair of wedges, and a Wedge-operating thumb-screw.

, JOSEPH LINDBURG,

device adjustably sup-

